@article{oliveira_bicudo_2017,  title={Seasonal variation of limnological features and trophic state index of two oligotrophic reservoirs of southeast Brazil},  volume={77},  ISSN={1519-6984},  url={https://doi.org/10.1590/1519-6984.14015},  DOI={10.1590/1519-6984.14015},  number={2},  journal={Brazilian Journal of Biology},  publisher={Instituto Internacional de Ecologia},  author={Oliveira, S. A. and Bicudo, C. E. M.},  year={2017},  month={Apr},  pages={323–331} }